Atomic Structure
What is the subatomic particle on the energy levels of the atom?
Electron
How do you find the number of valence electrons for an element?
Look at the group number on top of each column
How many neutrons does this isotope have?
14
C
6
8 neutrons
What is the center of an atom called?
The nucleus
What subatomic particles are found in the nucleus?
Protons and Neutrons
What is the most unstable/reactive group?
Halogens and Alkali
How many neutrons are in this isotope? How many protons?
18
O
8
Neutrons: 10
Protons: 8
Where do you find electrons in an atom?
Energy levels/rings/electron cloud
What is the charge of a proton? (+-)
Positive
Which group is after alkali and has 2 valence electrons?
Alkaline Earth Metals
What is the atomic number of the isotopic notation below?
235
U
92
92 - atomic number is on the bottom!
What is an E dot model?
Model that shows how many valence electrons using dots and chemical symbol.
What is the charge of a neutron
neutral
Shiny and Malleable
I am one of the 3 large categories in the periodic table (metal, nonmetal, metalloid)
Metal
How do you find the mass number of an atom?
Add what is in the nucleus
Protons + Neutrons
How many valence electrons does group 8 have?
What are the outer electrons called and how many does an atom need on the outer level to be stable?
Valence electrons
Needs 8 to be FULL
I have properties of both metals and nonmetals
Metalloids
What is an isotope?
element that has different number of neutrons and protons.
What is the atomic mass of N? (use your periodic table)
14.01